I just did a bunch of work messing with this. It works on the Mac emulator called "Mac240" for 68K machines, which also emulates ReGIS graphics. I would have no idea what VMS would 'support', but it's just a matter of dumping escape code sequences to the terminal. I have been unsuccessful at getting a real 220 to respond to the escape codes that the Mac emulator seems to accept, according to the VT220 programmer's reference. On Sep 18, 2013, at 12:40 AM, Sampsa Laine <sampsa at mac.com> wrote: I came across this little gem when perusing VT220 escape code: "4.4.2 Designating Soft (Down-Line-Loadable) Character Sets You can define a soft character set (font) that may or may not replace one of the existing hard sets (ROM fonts). If you do replace a hard set, the replacement occurs for both the 80 and 132-column versions" Does VMS support this? Or is it up to the terminal emulator? Here's the link: http://vt100.net/docs/vt220-rm/chapter4.html sampsa <sampsa at mac.com> mobile +358 40 7208932